What is the normal range for a platelet count?

The normal range for a platelet count is between 140,000 and 440,000 platelets per microliter of blood. This range is established based on extensive studies and represents the typical physiological levels in healthy adults. Platelets are crucial for hemostasis, and maintaining them within this range ensures proper blood clotting and overall vascular health.

Platelets play a vital role in preventing excessive bleeding; thus, knowing their normal range helps in diagnosing various conditions related to bleeding disorders or thrombocytopenia. Deviations from this range can indicate potential health issues. For instance, a count below 140,000 can suggest an increased risk of bleeding disorders, while a count above 440,000 may indicate a tendency towards thrombosis.

The other ranges provided do not accurately reflect established clinical standards for platelet counts as seen in most references and clinical guidelines. Hence, the selection of the range 140,000-440,000 is based on widely accepted diagnostic criteria.